Remove outdated comment

Author: Sa4dUs

compiler/rustc_codegen_llvm/src/back/write.rs

@@ -710,8 +710,7 @@ pub(crate) unsafe fn llvm_optimize(
     if cgcx.target_is_like_gpu && config.offload.contains(&config::Offload::Enable) {
         let cx =
             SimpleCx::new(module.module_llvm.llmod(), module.module_llvm.llcx, cgcx.pointer_size);
-        // For now we only support up to 10 kernels named kernel_0 ... kernel_9, a follow-up PR is
-        // introducing a proper offload intrinsic to solve this limitation.
+
         for func in cx.get_functions() {
             let offload_kernel = "offload-kernel";
             if attributes::has_string_attr(func, offload_kernel) {